Centripetal dissolver



A ril 13, 1937. A. M. EACH 2,0 6,975

CENTRIPETAL DI S SOLVER Filed May 12, 1936 Patented Apr. 13, 1937 VUNITED STATES PATENT" OFFIQE 4 Claims.

My invention relates to acentripetal dissolver and it; consists in theconstructions, arrangements and combinations herein described andclaimed. V

It is an object of the invention to provide an agitating means, theblades of which are so pitchedas to avoid outward centrifugal force andtend to draw the material undergoing treatment inwardly toward thecenter of the agitating unit. i I I It is a still further object of theinvention to provide a unit which is of extreme simplicity, cheap tomanufacture and which may be readily dismantled for the purpose ofreplacing parts,

or cleansing. 7

Additional objects, advantages and features of invention will beapparent from the following description considered in conjunction withthe accompanying drawing, wherein Figure 1 is a side elevation of. thedissolver constructed in accordance with my invention.

Figure 2 is a cross section on the line 2--2 of Figure 1.

Figure 3 is a plan view of a blank for one of the blades of the unit.

Figure 4 is a side elevation of one of the blades.

I Figure 5 is a top plan view thereof.

Figure 6 is a sectional View of the lower mounting head and stud.

Figure 7 is a bottom plan view thereof.

Figure 8 is a sectional view of the upper mounting head and stud.

There is illustrated in Figures 1 and 8 a shaft III which may be thearmature shaft of an electric motor (not shown) or a separate shafthaving any suitable coupling means for attachment to a prime mover. Theshaft I0 terminates in a reduced threaded stud member I I.

A sleeve I2 is employed, having a bore I3 of the same diameter as thestud II, this bore extending substantially throughout the length of 4the sleeve, but is provided with an enlarged annular recess I4 receivingthe lower end of the shaft I0 and a fiber washer I2 therewithin. Thebore of the sleeve I2 is interiorly threaded throughout its length andreceives the stud I I, the stud II stopping short of the other end ofthe sleeve a substantial distance to permit threaded engagement of aclamping bolt l5. The bolt I5 preferably comprises a globular head I6presenting a surface which is smooth and liable in a minimum degree toadhesion of substances from the material agitated.

In the present instance, three agitator blades I! are employed, althoughthe number may be increased or decreased, if desired, depending largelyupon the workrequired of the agitator unit. The blades I1 are identicalin construction, and therefore, a description of one will be dealt with.

v The blades I! are stamped. from suitable metal as an integralelongated member I8 the ends of which terminate in ears I 8' havingcircular formation, medially of which an aperture I9 is formed. The earsI8 are of a length to position 10 the blades a spaced distance from thelongitudinal axis of the shaft, when inassembled relation, thusproviding ample space into which the material may be drawn bycentripetal action during rotation, without liability of packing of 15partially dissolved materials.

It should be noted that the major portion of the members I8 comprisestraight longitudinal leading edges 28, and in order that the body I8may be presented at an angle of 15 degrees with 20 respect to the axisof rotation to produce the centripetal action the ears I8 are disposedat such angle with respect to the longitudinal axis of the body I8 asmay be clearly seen in Figure 3.

In the final formation of the blades, the ears I8 are bent at rightangles, on the dotted lines 22, so as to align the apertures I9 forreception of assembly bolts, as will now be described.

The cars I8 of the agitator blades at each end, are arranged insuperposed contacting rela- 30 tion, and for this reason the length ofthe body portions I8 will be progressively longer, as shown in Figure 1.With the ears I8 thus arranged and the uppermost ear abutting the sleeveit. with the apertures I9 aligned with the bore of the 35 sleeve, thebolt I6 is screwed into the bore for retention of the blades. The lowerears I8 of the blades will also be aligned, and through the aperturesI9, I provide a globular headed screw stud 23 in screw threadedengagement with an 40 annular smooth faced nut 24. Tightening ofrespective screw studs I623 obviously will hold the blades rigid againstindividual movement, and if found necessary, the under face of the headof the studs may be slightly undercut, as at 25 (see 45 Fig. 6). Suchconstruction presents a clamping action adjacent the outer periphery ofthe bolt, and the nut may be similarly undercut if desired.

Each of the blades I! has formed therein a rib 26, pressed outwardly ofthe body of the metal, extending longitudinally of the blade, andfunction as strike members to more thoroughly beat the material duringoperation of the device, as well as reinforcing the blade. Obviously,the rib 10 the center of the agitating unit.

may be pressed inwardly rather than outwardly, if desired.

The present drawing illustrates the form as would be employed at sodafountains, or in like situations, for the thorough beating and mixing ofice cream and liquids, and in operation, the shaft l0 would be driven ata desired speed, imparting rotation of the agitator. The blades l1 dueto their angle, would encounter the substance being agitated, tending todraw it toward The substance would thus be thoroughly broken up andliability of splashing of the liquid due to centrifugal force would beobviated.

While I have shown and described a preferred 15 construction, I am awarethat variations may be made, and I therefore consider as my own, allsuch modifications as fairly fall within the scope of the appendedclaims.

I claim:

1. In an agitator, a rotatable shaft, a sleeve thereon, said sleevebeing interiorly threaded, a plurality of agitator blades, each of saidblades having right angularly disposed apertured ears at each end, screwmeans engageable through the apertures of the ears at one end and inscrew threaded engagement with the bore of the sleeve and meansengageable with the apertures of the other ends of the ears forsecurement of the blades.

2. In an agitator, a rotatable shaft, a sleeve thereon, a plurality ofagitator blades having right angularly disposed ears, the ears being ofa length to position the blades a spaced distance from the longitudinalaxis of the shaft, said blades having one longitudinal edge portionspaced a greater distance from the axis of the shaft than the other,said ears being apertured and arranged in superposed position forregistry of the apertures, and screw members engaged through theapertures for securement of the blades, one of said screw members beingsecured in the sleeve.

3. In'an agitator, a rotatable shaft having a reduced threaded stud, asleeve on the stud, said sleeve having an annular recess foraccommodation of a portion of the shaft, a plurality of agitator blades,each of said blades having right angularly disposed apertured ears, theears being of a length to position the blades a spaced distance from thelongitudinal axis of the shaft, said blades having one longitudinal edgeportion spaced a greater distance from the axis of the shaft than theother, the ears at respective ends being arranged in superposed relationfor registry of the apertures, a globular head screw engaged through theears at one end and in screw threaded engagement with the sleeve, aglobular head screw engaged through the apertures of the other ears anda nut member on the screw for clamping the ears.

4. The structure of claim 3 in which the blades include a longitudinallyextended rib.

ANTON M. BACH.

